1 /* 2 * Copyright (c) 2020 Nuvoton Technology Corporation. 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #ifndef _NUVOTON_NPCX_REG_ACCESS_H 8 #define _NUVOTON_NPCX_REG_ACCESS_H 9 10 /* 11 * NPCX register bit/field access operations 12 */ 13 #define IS_BIT_SET(reg, bit) (((reg >> bit) & (0x1)) != 0) 14 15 #define GET_POS_FIELD(pos, size) pos 16 #define GET_SIZE_FIELD(pos, size) size 17 #define FIELD_POS(field) GET_POS_##field 18 #define FIELD_SIZE(field) GET_SIZE_##field 19 20 #define GET_FIELD(reg, field) \ 21 _GET_FIELD_(reg, FIELD_POS(field), FIELD_SIZE(field)) 22 #define _GET_FIELD_(reg, f_pos, f_size) (((reg)>>(f_pos)) & ((1<<(f_size))-1)) 23 24 #define SET_FIELD(reg, field, value) \ 25 _SET_FIELD_(reg, FIELD_POS(field), FIELD_SIZE(field), value) 26 #define _SET_FIELD_(reg, f_pos, f_size, value) \ 27 ((reg) = ((reg) & (~(((1 << (f_size))-1) << (f_pos)))) \ 28 | ((value) << (f_pos))) 29 30 #define GET_FIELD_POS(field) \ 31 _GET_FIELD_POS_(FIELD_POS(field)) 32 #define _GET_FIELD_POS_(f_ops) f_ops 33 34 #define GET_FIELD_SZ(field) \ 35 _GET_FIELD_SZ_(FIELD_SIZE(field)) 36 #define _GET_FIELD_SZ_(f_ops) f_ops 37 38 #endif /* _NUVOTON_NPCX_REG_ACCESS_H */ 39
